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isthmus of thyroid gland

^ http://purl.obolibrary.org/obo/UBERON_0001609

A narrow median bridge that joins together the lower thirds of the two lateral (right and left) lobes of the thyroid gland and usually covers the second and the third tracheal rings; the thyroid isthmus is variable in presence and size, can change shape and size, and can encompass a cranially extending pyramid lobe (lobus pyramidalis or processus pyramidalis), remnant of the thyroglossal duct. [ MP:0013163 ]

Synonyms: thyroid isthmus, isthmus glandulae thyroideae, thyroid gland isthmus

Term info

database cross reference
Subsets

uberon_slim

UBPROP 0000003

In mammals and in some reptiles, the thyroid is composed of two lobes connected by an isthmus; in birds and amphibians, the thyroid consists of two isolated lobes. (...) Despite these morphological differences, the ontogeny of the thyroid follows the same pattern in all vertebrates (...).[well established][VHOG]

depicted by

http://upload.wikimedia.org/wikipedia/commons/9/9e/Gray1174.png

has related synonym

isthmus glandulae thyroideae

id

UBERON:0001609

prefLabel

Isthmus of thyroid gland